package com.java3.dao;

import com.java2.bean.Customer;

import java.sql.Connection;
import java.sql.Date;
import java.util.List;

/**
 * @author jingjintao
 * @date 2021/6/10 - 22:42
 **/
public class CustomerDAOImpl extends BaseDAO<Customer> implements CustomerDAO {


    @Override
    public void insert(Connection conn, Customer customer) {
        String sql = "insert into customers(name,email,birth) values(?,?,?)";
        update(conn, sql, customer.getName(), customer.getEmail(), customer.getBirth());
    }

    @Override
    public void deleteById(Connection conn, int id) {
        String sql = "delete from customers where id=?";
        update(conn, sql, id);
    }

    @Override
    public void update(Connection conn, Customer customer) {
        String sql = "update customers set name=?,email=?,birth=? where id=?";
        update(conn, sql, customer.getName(), customer.getEmail(), customer.getBirth(), customer.getId());
    }

    @Override
    public Customer getById(Connection conn, int id) {
        String sql = "select id,name,email,birth from customers where id=?";
        return getInstance(conn, sql, id);
    }

    @Override
    public List<Customer> getAll(Connection conn) {
        String sql = "select id,name,email,birth from customers";
        return getForList(conn,  sql);
    }

    @Override
    public Long getCount(Connection conn) {
        String sql = "select count(*) from customers";
        return getValue(conn, sql);
    }

    @Override
    public Date getMaxDate(Connection conn) {
        String sql = "select max(birth) from customers";
        return getValue(conn, sql);
    }
}
